1980 - Founder president of 'Bangladesh Association of Chicagoland' in Chicago

27 March 1982 - Pass away in Jeddah, Saudi Arabia with heart attack a week before his 53rd birthday, and a day after Bangladesh's 11th independance anniversary. Buried in Graceland Cemetery, Chicago on 2 April 1982

1983 - Posthumously awarded AIA (American Institute of Architects) Gold Medal for Distinguished Achievement, and Aga Khan Award for Architecture 'for the Structure of the Hajj Terminal, An Outstanding Contribution to Architecture for Muslims' among other awards

1999 - Engineering News-Record lists F. R. Khan as one of the world's top 20 structural engineers of the last 125 years

1999 - Awarded 'Swadhinata Purushkar' (Independence Day Award), country's highest state honour, by Government of Bangladesh. A commemorative postal stamp (4 taka) also published in his memory

May 2005 - Conferred title of most famous Bangladeshi-American of the 20th century by Bangladeshi-American Foundation, Inc. (BAFI)